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Priority claimed from PCT/IB2011/001741external-prioritypatent/WO2012014050A2/en
Application filed by Thea LabfiledCriticalThea Lab
Publication of TN2013000013A1publicationCriticalpatent/TN2013000013A1/en
L'invention concerne une tête de distribution de liquide goutte à goutte comportant un embout (14, 114) percé d'un canal d'expulsion du liquide (32) par lequel s'effectue également le retour d'air aspiré de l'extérieur en sens inverse. Dans l'embout, sur le canal d'expulsion, la tête de distribution goutte à goutte suivant 1 ' invention comporte un clapet fonctionnant en clapet anti-retour vis-à-vis de la circulation du liquide en expulsion. L'obturateur mobile de ce clapet (34, 40) est réalisé de manière à se laisser traverser sélectivement par l'air quand il vient en appui contre son siège (36, 126) dans une position d'obturation du canal d'expulsion de liquide. Il est rappelé dans cette position sous le seul effet d'une dépression s ' exerçant en amont et tendant à aspirer de l'air extérieur. L'obturateur est avantageusement en matériau microporeux réalisant une filtration antibactérienne sur le retour d'air.The invention relates to a drip liquid dispensing head comprising a nozzle (14, 114) pierced with a liquid expulsion channel (32) through which also the return of air sucked from the outside is effected. reverse. In the mouthpiece, on the expulsion channel, the drip distribution head according to the invention comprises a valve operating as a non-return valve vis-à-vis the circulation of the liquid expulsion. The movable shutter of this valve (34, 40) is designed to be selectively traversed by the air when it bears against its seat (36, 126) in a closed position of the expulsion channel. liquid. It is recalled in this position under the sole effect of a depression exerted upstream and tending to suck outside air. The shutter is advantageously made of microporous material providing antibacterial filtration on the return air.
TNP2013000013A2011-07-282013-01-21
DISPENSER HEAD OF A DROP LIQUID LIQUID
TN2013000013A1
(en)
Device comprising a first barrel that defines a first chamber to contain a first composition the first chamber that has at least one side wall and a distal end wall that defines a dispensing nozzle, in which at least one flow channel is formed in at least one side wall and a distal end wall of the first chamber, a second barrel, an operable plunger to drive the second barrel.
Epitaxial oxide film, piezoelectric film, piezoelectric film element, and liquid delivery head and liquid delivery apparatus using piezoelectric element
Ternary insecticidal composition comprising a pyrethroid compound, a neonicotinoid and a benzoyl-phenyl urea compound in a synergistically effective amount; method for the control of insects comprising the use of said composition.
return channel mounting apparatus for a centrifugal compressor, centrifugal compressor apparatus and method for maintaining the performance of a centrifugal compressor ".